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· Oh! What shall I be?
2,746 Posts
Internet connections through Ethernet do not have restrictions on the computer as long as there is an Ethernet port. If you are useing a usb or other type of external Ethernet port that did not come with your computer, you would need to find a driver that works with it. If you are useing a router, the router may need to be updated to support Vista depending on how you set it up. I would also check your Bios at start up to make sure that the Ethernet is not disabled by deafult and also any Firewall you have is not blocking it.
Feel free to post back and try to give more information if you can please.

· Global Moderator
Electronic Design
52,687 Posts
Please supply the following info, exact make and models of the equipment please.

Make and model of the broadband modem.
Make and model of the router.
Connection type, wired or wireless.
If wireless, encryption used, (none, WEP, WPA, or WPA2)
Make/model of your computer.
Version and patch level of Windows on all affected machines, i.e. XP-Home (or XP-Pro), SP2, Vista, etc.

Also, please give an exact description of your problem symptoms, including the exact text of any error messages.

Changes that may help to increase the compatibility of Vista with older networking devices:

Disable the IP Helper service:

1. Go to Start and type in "services.msc" (without the quotes) and press Enter
2. Scroll down to the IP Helper service, right click on it and select Properties
3. In the dropdown box that says "Automatic" or "Manual", set it to Disabled and then click on "Apply"
4. Then click on "Stop" to stop the service from running in the current session
5. Click OK to exit the dialog

Disable IPv6:

1. Go to Start and type in "ncpa.cpl" (without the quotes) and press Enter
2. Right click on each network connection and select "Properties"
3. Remove the checkmark from the box next to "Internet Protocol Version 6 (TCP/IPv6)
4. Click OK to exit the dialog

NOTE: You should do this for each network connection.

Disable the DHCP Broadcast Flag:

  1. Go to Start and type in regedit and press Enter.
  2. Locate and then click the following registry subkey:
  3. HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces\{GUID}
  4. In this registry path, click the (GUID) subkey to be updated.
  5. If the key DhcpConnForceBroadcastFlag does not exist, use the Edit menu, point to New, and then click DWORD (32-bit) Value. In the New Value #1 box, type DhcpConnForceBroadcastFlag, and then press ENTER. If the key exists, skip this step.
  6. Right-click DhcpConnForceBroadcastFlag, and then click Modify.
  7. In the Value data box, type 0, and then click OK.
  8. Close Registry Editor.
NOTE: You should do this for each and every GUID subkey.

The only program I'm aware of that currently relies on IPv6 is the new Windows Meeting Space. The first 2 changes will cause that program not to work - but will leave all of your normal (IPv4) connections unaffected. If it causes problems that you can't overcome, simply revert back to the original settings.
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